Siemens 6AG1321-7TH00-4AB0 Digital Input Module — Legacy Replacement. Digital inputs: 16 DI; Compatible equipment: 6ES7321-7TH00-0AB0; Ambient temperature range: 0…+60 °C.
***spare part*** SIPLUS PCS 7 SM 321 16 DI based on 6ES7321-7TH00-0AB0 with conformal coating, 0…+60 °C, digital input 16 DI; 24 V DC, 1x 40-pole, diagnostics-capable, for contacts (wired/ not wired), NAMUR encoder, 3/4-wire BERO, with chatter monitoring; pulse stretching, open-circuit detection connection IM 153-2 required